On some Trichoptera from Northern Venezuela and Ecuador (Insecta)

Three new species (Smicridea (S.) meridensis and Helicopsyche merida both from Venezuela and H. cotopaxi from Ecuador), previously undescribed females of two species (Synoestropsis furcata Flint, 1974, and S. grisoli Navas, 1924), the immature stages of Smicridea meridensis nov. sp., Leptonema insulanum Banks, 1924, Nectopsyche gemmoides Flint, 1981, Triplectides species, Atanatolica spec., Phylloicus angustior Ulmer, 1905, and the cases of Phylloicus spec., Helicopsyche merida nov. spec, and H. cotopaxi nov. spec. are described. The cases of Ochrotrichia Mosely, 1934 (Metrichia Ross, 1938) are described, especially in relation to the development in certain species of a pair of dorsal “chimneys”, and their relationship to the similar cases of Dicaminus Müller, 1879, is discussed.